SOLVED

51) Which one of the following statements is not correct about the reaction H2 + Cl2 → 2 HCl? A) H2 and Cl2 are the reactants. B) HCl is the product. C) One molecule of hydrogen contains two atoms. D) Two molecules of HCl are formed in the reaction. E) This reaction is easily reversible. 52) In dehydration synthesis reactions, compounds A) lose water molecules. B) gain water molecules. C) convert water molecules to hydrogen and oxygen. D) convert hydrogen and oxygen to water. E) gain electrons. 53) In the reaction listed below, what coefficient needs to be added to balance the equation? 6 CO2 + 6 H2O → C6H12O6 + ________ O2 A) 2 B) 4 C) 6 D) 8 E) 10 54) Chemical reactions that yield energy, such as heat, are said to be A) endergonic. B) activated. C) exergonic. D) neutral. E) thermonuclear. 55) All of the following are true concerning enzymes, except that they A) are proteins. B) function as biological catalysts. C) lower the activation energy required for a reaction. D) affect only the rate of a chemical reaction. E) are consumed during the reaction. 56) Compounds that can be synthesized or broken down by chemical reactions inside the body are called A) inorganic compounds. B) organic compounds. C) nutrients. D) metabolites. E) enzymes. 57) Each of the following is an example of an inorganic compound, except A) water. B) acids. C) bases. D) salts. E) carbohydrates. 58) Identify which of the following is both an anion and a compound: A) Na+ B) Cl- C) K+ D) HCO3- E) NaCl 59) Nonpolar organic molecules are good examples of A) electrolytes. B) molecules that will dissociate when placed into water. C) hydrophobic compounds. D) hydrophilic compounds. E) solutes. 60) During ionization, water molecules disrupt the ionic bonds of a salt to produce a mixture of ions. These ions can carry a current and so are called A) cations. B) anions. C) acids. D) electrolytes. E) counterions.